A057384 Low-temperature specific heat expansion for hexagonal lattice (Potts model, q=3).

72, 0, 0, 0, 600, 726, -1440, 0, 7056, 8100, -13824, -20808, 94176, 119130, -196800, -291942, 917664, 1986924, -2389248, -5092500, 10788960, 26041338, -21643104, -81270876, 111771360, 369058596, -215519232, -1109316384

Offset: 0

Author

N. J. A. Sloane, Aug 30 2000

Keywords

• sign

Comments

The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice.

Links

• I. Jensen, Table of n, a(n) for n = 0..63 (from link below)
• I. Jensen, More terms
• G. Nebe and N. J. A. Sloane, Home page for hexagonal (or triangular) lattice A2
• Index entries for sequences related to specific heat

Crossrefs

Cf. A057374-A057405.